A Genetic Marker to Separate Emiliania Huxleyi (Prymnesiophyceae) Morphotypes

Schroeder, Declan C., Biggi, Gaia F., Hall, Matthew, Davy, Joanne, Martinez, Joaquín M., Richardson, Anthony J., Malin, Gillian and Wilson, William H. (2005) A Genetic Marker to Separate Emiliania Huxleyi (Prymnesiophyceae) Morphotypes. Journal of Phycology, 41 4: 874-879. doi:10.1111/j.1529-8817.2005.04188.x

Author Schroeder, Declan C.
Biggi, Gaia F.
Hall, Matthew
Davy, Joanne
Martinez, Joaquín M.
Richardson, Anthony J.
Malin, Gillian
Wilson, William H.
Title A Genetic Marker to Separate Emiliania Huxleyi (Prymnesiophyceae) Morphotypes
Journal name Journal of Phycology   Check publisher's open access policy
ISSN 0022-3646
Publication date 2005
Sub-type Article (original research)
DOI 10.1111/j.1529-8817.2005.04188.x
Volume 41
Issue 4
Start page 874
End page 879
Total pages 6
Editor Patricia A. Wheeler
Place of publication USA
Publisher Blackwell Publishing Inc.
Collection year 2005
Language eng
Subject C1
239901 Biological Mathematics
770101 Climate change
Abstract Emiliania huxleyi (Lohm.) Hay and Mohler is a ubiquitous unicellular marine alga surrounded by an elaborate covering of calcite platelets called coccoliths. It is an important primary producer involved in oceanic biogeochemistry and climate regulation. Currently, E. huxleyi is separated into five morphotypes based on morphometric, physiological, biochemical, and immunological differences. However, a genetic marker has yet to be found to characterize these morphotypes. With the use of sequence analysis and denaturing gradient gel electrophoresis, we discovered a genetic marker that correlates significantly with the separation of the most widely recognized A and B morphotypes. Furthermore, we reveal that the A morphotype is composed of a number of distinct genotypes. This marker lies within the 3' untranslated region of a coccolith associated protein mRNA, which is implicated in regulating coccolith calcification. Consequently, we tentatively termed this marker the coccolith morphology motif.
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 07:01:04 EST